1GHB

A SECOND ACTIVE SITE IN CHYMOTRYPSIN? THE X-RAY CRYSTAL STRUCTURE OF N-ACETYL-D-TRYPTOPHAN BOUND TO GAMMA-CHYMOTRYPSIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.152 
  • R-Value Observed: 0.152 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A STRUCTURAL EXPLANATION FOR ENZYME MEMORY IN NONAQUEOUS SOLVENTS.

Yennawar, H.P.Yennawar, N.H.Farber, G.K.

(1995) J Am Chem Soc 117: 577-585


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GAMMA-CHYMOTRYPSINA [auth E]13Bos taurusMutation(s): 0 
EC: 3.4.21.1
UniProt
Find proteins for P00766 (Bos taurus)
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Go to UniProtKB:  P00766
Entity Groups  
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UniProt GroupP00766
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
GAMMA-CHYMOTRYPSINB [auth F]131Bos taurusMutation(s): 0 
EC: 3.4.21.1
UniProt
Find proteins for P00766 (Bos taurus)
Explore P00766 
Go to UniProtKB:  P00766
Entity Groups  
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UniProt GroupP00766
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
GAMMA-CHYMOTRYPSINC [auth G]97Bos taurusMutation(s): 0 
EC: 3.4.21.1
UniProt
Find proteins for P00766 (Bos taurus)
Explore P00766 
Go to UniProtKB:  P00766
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00766
Sequence Annotations
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  • Reference Sequence

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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
PRO-GLY-ALAD [auth P]3N/AMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
TRP
Query on TRP

Download Ideal Coordinates CCD File 
F [auth E]TRYPTOPHAN
C11 H12 N2 O2
QIVBCDIJIAJPQS-VIFPVBQESA-N
HEX
Query on HEX

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G [auth E],
H [auth E],
I [auth F],
J [auth F],
L [auth G]
HEXANE
C6 H14
VLKZOEOYAKHREP-UHFFFAOYSA-N
IPA
Query on IPA

Download Ideal Coordinates CCD File 
K [auth F],
M [auth G],
N [auth G]
ISOPROPYL ALCOHOL
C3 H8 O
KFZMGEQAYNKOFK-UHFFFAOYSA-N
ACE
Query on ACE

Download Ideal Coordinates CCD File 
E
ACETYL GROUP
C2 H4 O
IKHGUXGNUITLKF-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.152 
  • R-Value Observed: 0.152 
  • Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.6α = 90
b = 69.6β = 90
c = 97.51γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-06-22
    Type: Initial release
  • Version 1.1: 2008-03-06
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2024-06-05
    Changes: Data collection, Database references, Derived calculations, Other